An open-source HTML5 game framework that offers WebGL and Canvas.
A 2D and 3D, cross-platform, free and open-source game engine released under the MIT license.
An open-source, cross-platform game engine designed for everyone - it's extensible, fast and easy to learn.
An open-source re-implementation of RollerCoaster Tycoon 2 (RCT2), expanding the game with new features, fixing bugs and raising game limits.
A free, open source cross-platform flight simulator developed by the FlightGear project since 1997.
Versions
2024.1.6
2020.3.19
A cross-platform simulation game in which the player aims to establish a successful transport company by constructing and managing transportation systems for passengers, mail and goods by rail, road, ship and air.
A fast-paced, futuristic FPS with RTS elements, pitting technologically advanced humans against hordes of highly adaptable aliens.
An open-source real-time strategy and real-time tactics hybrid computer game. It was originally released in 1999 for Microsoft Windows and PlayStation, and is now also available for macOS, FreeBSD, AmigaOS 4, AROS, MorphOS, Linux, NetBSD and OpenBSD.